502557066 has 48 divisors (see below), whose sum is σ = 1228836960. Its totient is φ = 147036960.

The previous prime is 502557053. The next prime is 502557067. The reversal of 502557066 is 660755205.

502557066 is a `hidden beast` number, since 5 + 0 + 25 + 570 + 66 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 502557066.

It is not an unprimeable number, because it can be changed into a prime (502557067) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38020 + ... + 49503.

It is an arithmetic number, because the mean of its divisors is an integer number (25600770).

Almost surely, 2^502557066 is an apocalyptic number.

502557066 is an abundant number, since it is smaller than the sum of its proper divisors (726279894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

502557066 is a wasteful number, since it uses less digits than its factorization.

502557066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87571 (or 87568 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The square root of 502557066 is about 22417.7845917031. The cubic root of 502557066 is about 795.0512557436.

The spelling of 502557066 in words is "five hundred two million, five hundred fifty-seven thousand, sixty-six".